The variation with velocity of e/m for cathode rays 
By: By Charles Albert Proctor.
Published: 1910
Place of publication: Chicago
Language: eng
Number of pages: 61
Subjects: Cathode rays.
Notes: Thesis (PH. D.)--University of Chicago, 1909.
"Reprinted from the Physical review, vol. XXX, no. 1, January, 1910."